JP5784466B2 - Road surface paint application equipment - Google Patents

Description

  The present invention is a road surface paint in which a flowable road surface paint supplied to a cylindrical rotating body that is continuously rotated is discharged toward the road surface by centrifugal force, and the road surface paint is applied in a line on the road surface. The present invention relates to a coating apparatus.

  When drawing road lines such as road signs, lane markings, letters, etc. on the road surface, melt-type road marking materials made of well-known materials such as petroleum resin, pigments, build materials, aggregates, reflectors, additives, etc. There is used a road surface paint coating apparatus that draws a line by coating a predetermined paint composed of As one type of such a road surface paint coating apparatus, as shown in Patent Document 1 and Patent Document 2, for example, fluid road surface paint supplied to a continuously rotating columnar rotating body is finely divided using centrifugal force. What is provided in a vehicle that travels on the road surface with a paint discharge device that granulates and discharges from the discharge port toward the road surface, and applies road surface paint in a line shape on the road surface as the vehicle travels is there.

  The separation type road surface paint coating apparatus as described above is applied to the road surface by scattering the road surface paint, so that the road surface line can be suitably drawn even on a permeable paved road having a large surface unevenness. There is.

  However, the road surface paint application apparatus as described above is provided with a flow rate adjusting valve for adjusting the flow rate at which the road surface paint is supplied to the paint discharge device, and the road surface paint application apparatus has the road surface. When the paint is supplied to the paint discharge device, the flow control valve is opened to supply the paint paint to the paint discharge device, so that the flow control valve is opened to a predetermined opening and the road surface supplied to the paint discharge device. Until the paint flow rate becomes constant, the amount of road paint released from the paint discharge device is reduced, and when the road paint is applied to the road surface, the thickness of the road paint is reduced. There was a problem that the beginning of the line drawn on the road surface was unclear. Furthermore, even if the flow control valve is closed and the road surface paint is stopped from being supplied to the paint discharge device, the fluid adhered to the outlet of the flow control valve or the cylindrical rotating body for a predetermined time. Since the paint is scattered, there is a problem that the end portion of the line drawn on the road surface becomes unclear.

  On the other hand, as shown in Patent Document 3, a pair of first receiving plate and second receiving plate that respectively block the discharge ports of the paint discharging device, and the pair of first receiving plate and second receiving plate. A pair of receiving plate driving devices that respectively move between a blocking position for blocking the radiation path between the discharge port and the road surface and an open position for opening the radiation path, and a paint discharge device for the paint for the road surface When the supply is performed, the first receiving plate is made to receive the road surface paint released immediately after the start of the supply, and then the first receiving plate is moved from the blocking position to the open position, and for the road surface. When the supply of paint to the paint discharging device is stopped, the road surface paint application is provided with a control device for positioning the second receiving plate at the blocking position and receiving the road surface paint released after the supply is stopped. A device has been proposed. According to this, when the road surface paint is supplied to the paint discharge device, the road surface paint is discharged in the first period in a relatively low flow rate discharged immediately after the start of the supply by the control device. Since the first receiving plate is received by the receiving plate and then moved to the open position, the starting end of the line drawn on the road surface becomes clear. Further, when the supply of the road surface paint to the paint discharge device is stopped, the road surface paint released after the stop of the supply by the control device is received by the second receiving plate, so that it is drawn on the road surface. The end of the line becomes clear.

JP 2002-352009 A JP 2002-352010 A JP 2010-1000098 A

  However, the conventional road surface paint coating apparatus still has to be improved. That is, since the divergence angle of the flow of the road surface paint discharged from the paint discharge device toward the road surface is large, the rotation time or the rotation of the second receiving plate for blocking the flow of the road surface paint at the end of the line application Since the angle is required to be relatively large, there is a problem that the end portion of the line formed by applying the road surface paint on the road surface becomes unclear.

  The present invention has been made against the background of the above circumstances, and an object of the present invention is to provide a road surface paint coating apparatus in which a rear end portion of a line drawn on a road surface is clear. .

As a result of various investigations on the background of the above circumstances, the present inventors have determined that the outer peripheral surfaces of a pair of cylindrical rotating bodies that emit fluid road surface paint or a pair of cylindrical rotations in a paint discharge device. A fluororesin that promotes peeling of the fluid road surface paint is peeled on the inner peripheral surface of the body housing the body and facing the outer peripheral surfaces of the pair of columnar rotating bodies with a slight gap. As a result, it has been found that the radiation angle θ of the road surface paint radiated from the discharge port of the paint discharge device is significantly reduced. The present invention has been made based on this finding.

That is, the gist of the first invention is that (a) a pair of parallel cylindrical rotating bodies that are continuously rotated so that outer peripheral surfaces approaching each other move downward and a fluid road surface paint are provided. A main body that accommodates the pair of cylindrical rotating bodies and has a supply port to be supplied and a discharge port through which the road surface paint is discharged, and the fluid road surface paint is finely divided using centrifugal force. A paint discharger that granulates and discharges from the discharge port toward the road surface; (b) a pair of first and second receiving plates that respectively block the discharge port of the paint discharge device; and (c) the pair. A first blocking position and a second blocking position for blocking the radiation path between the discharge port and the road surface, and a first opening position and a second opening position for opening the radiation path. Pair of receiving plate driving devices respectively moved between Is provided in a cart that travels on the road surface, and the paint for a road surface that coats the road surface paint in a line shape on the road surface as the cart travels, (d) the paint discharging device A peeling layer that promotes peeling of the road surface paint on at least one of an outer peripheral surface of the pair of columnar rotating bodies and a partial inner peripheral surface of the main body of the paint discharging device facing the outer peripheral surface of the pair of cylindrical rotating bodies. And (e) a release layer that promotes peeling of the road surface paint is formed on the receiving surfaces of the first receiving plate and the second receiving plate, and (f) the first opening. A first plate member for slidingly contacting the first receiving plate located at a position from the tip, and the road surface paint received on the first receiving plate by driving the first plate member on the road surface Road pane painted in line The first and paint removal device having a first actuator scraping above, including, in fact.

  According to the first aspect of the present invention, at least one of the outer peripheral surfaces of the pair of columnar rotating bodies of the paint discharging device and the partial inner peripheral surface of the main body of the paint discharging device facing the outer peripheral surfaces of the pair of cylindrical rotating bodies. In addition, a release layer that promotes peeling of the fluid road surface paint is formed, and the fluid road surface paint is rotated on the outer peripheral surface of the pair of columnar rotating bodies and the pair of columnar rotations in the body of the paint discharging device. Since the peeling from the inner peripheral surface of the part facing the outer peripheral surface of the body is easy, the convergence of the road surface paint discharged from the discharge port of the paint discharge device is enhanced and the radiation angle is reduced. The rotation time or the rotation angle of the second backing plate that blocks the flow of the road surface paint discharged from the discharge device toward the road surface at the end of the line application can be reduced. End of bets is formed by being applied on the road surface line is clear. In addition, when a peeling layer is formed on the inner peripheral surface of the main body of the paint discharging device facing the outer peripheral surface of the pair of columnar rotators, the road surface attached to the inner peripheral surface of the main body of the paint discharging device Since the amount of paint for use is small, the road surface paint from the outlet of the paint release device is less dropped and the burden on the second backing plate can be reduced, so that the end of the line becomes clearer. Furthermore, there is less sticking of the road surface paint to the outer peripheral surface of the pair of cylindrical rotating bodies and / or the partial inner peripheral surface of the main body of the paint discharging device facing the outer peripheral surface of the pair of cylindrical rotating bodies, and the construction is continued As well as an advantage that the service life is extended.

According to the second invention, (g) a second plate member for slidingly contacting the second receiving plate located at the second open position from the tip, and driving the second plate member to And a second paint removing device having a second actuator for scraping off the road surface paint received on the receiving plate into a paint container provided in advance . In this way, Ru can scrape off the road surface paint, which is received by the second receiving plate to easily paint container in the second plate member.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view showing a road surface paint coating apparatus and a vehicle equipped with the same according to an embodiment of the present invention. It is the II-II sectional view taken on the line of FIG. FIG. 3 is a III-III view of FIG. 2. FIG. 4 is a diagram illustrating a paint discharge position of a position switching mechanism in a state where a chain is adjusted from the state of FIG. 3 and a road surface paint apparatus is lowered. FIG. 8 is a VV sectional view of FIG. 7. FIG. 8 is a VI-VI view of FIG. 7. FIG. 7 is a sectional view taken along line VII-VII in FIG. 4. It is a figure explaining the operating state of a 1st paint removal apparatus. It is a figure explaining the operating state of a 2nd paint removal apparatus. It is a figure explaining the opening / closing apparatus with which the paint application device for road surfaces of FIG. 6 was equipped. It is sectional drawing explaining the mileage detection apparatus provided in the vehicle of FIG. It is a block diagram explaining the structure of the control apparatus provided in the paint coating apparatus for road surfaces. It is sectional drawing which expands and shows the paint discharge apparatus main body of FIG. It is a figure which expands and shows the longitudinal cross-section of the 2nd receiving plate of FIG. It is a figure which expands and shows the cross section of the 2nd receiving plate of FIG.

  Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In the following embodiments, the drawings are simplified, and the dimensions and the like of each part are not necessarily drawn accurately.

  FIG. 1 is a side view of a vehicle 12 on which a road surface paint coating apparatus 10 according to an embodiment of the present invention is mounted. The vehicle 12 includes a prime mover (not shown) and a loading platform 14 on a road surface by a driver. It is a so-called truck that is operated to run on.

  On the loading platform 14 of the vehicle 12, as shown in FIG. 1, a generator 16, a compressor (not shown), an LP gas cylinder 18, and small spherical glass for reflecting light toward the incident direction. A bead tank 20 for storing beads, a melting pot 24 for dissolving the road surface paint 22, and a heat insulation tank (not shown) for keeping the dissolved road surface paint 22 warm to maintain its fluidity are provided. It has been. The heat retaining tank and melting pot 24 are provided with a gas burner (not shown) that burns LP gas supplied from the LP gas cylinder 18 as a heat source.

  Further, below the loading platform 14 of the vehicle 12, as shown in FIG. 1, an air brush 28 for cleaning the road surface 26 using compressed air prior to the application of the road surface paint 22, and the traveling of the vehicle 12. Accordingly, the road surface paint application device 10 for applying the road surface paint 22 in a line shape on the road surface 26 and the road surface paint application device 10 provided for the road surface paint application device 10 are fixed to the road surface paint 22 immediately after being applied. A bead gun 32 shown in FIG. 4 for blowing beads and a travel distance detection device 34 for detecting the travel distance of the vehicle 12 are provided.

  FIG. 2 shows a position switching mechanism 36 for switching between a paint discharge position where the road surface paint 22 is applied to the road surface 26 from the road surface paint application apparatus 10, ie, a storage position where the road surface paint application apparatus 10 is accommodated in the vehicle 12. FIG. Further, the position switching mechanism 36 is movable in a direction intersecting the traveling direction of the vehicle 12 and preferably in a direction substantially perpendicular to the traveling direction of the vehicle 12. It is something to support. In FIG. 2, the road surface paint coating apparatus 10 is omitted.

  As shown in FIG. 2, the position switching mechanism 36 includes a pair of substantially rectangular fixing plates 38 fixed to the lower surface 14 a of the loading platform 14, and the pair of fixing plates 38 fixed to the pair of fixing plates 38 with respect to the traveling direction of the vehicle 12. A pair of support members 42 that support a base end portion 40a and an intermediate portion 40b of a pair of cylindrical rail members 40 extending in a direction that forms a substantially right angle, and a shaft center parallel to a direction orthogonal to the longitudinal direction of the rail members 40 A pair of moving mechanisms 44 capable of smoothly moving in the longitudinal direction of the rail member 40 by supporting a pair of rotating members 44 a (see FIGS. 3 and 4) rotating in the longitudinal direction on the outer peripheral surface of the rail member 40. And a pair of moving frames 46 each having a longitudinal shape. Therefore, the pair of moving frames 46 can be moved in the direction of the arrow in FIG. 2 from the lower side of the loading platform 14 shown in FIG. 1 to the outside of the loading platform 14 by the pair of rail members 40 via the moving mechanism 44.

  As shown in FIGS. 2 to 4, the position switching mechanism 36 includes a pair of longitudinal fixed frames 48 fixed to the pair of moving frames 46 and a pair of mounting frames to which the road surface paint coating apparatus 10 is attached. 50 and a pair of shaft members 48a, 50a disposed on the respective side surfaces of the pair of mounting frames 50 and the pair of fixed frames 48, so that the pair of shaft members 48a, 50a can rotate relative to each other around the shaft members 48a, 50a. One of the four connecting members 52 for connecting the fixed frame 48 and the pair of mounting frames 50 via the shaft members 48a, 50a, a chain 54 in which a plurality of metal rings are connected, and one of the pair of mounting frames 50 One of a pair of moving frames 46 and a latching portion 50b for latching the metal ring located at one end of the chain 54 And a hook portion 46a for latching any one of the above metal ring located at the other end portion to the intermediate portion of the chain 54 provided. When the pair of mounting frames 50 are moved in the direction approaching the moving frame 46 via the connecting member 52 and the metal ring in the middle portion of the chain 54 is hooked on the hooking portion 46 a of the moving member 46, The road surface paint coating apparatus 10 is arranged at a position shown in FIG. 3 through a pair of mounting frames 50.

  FIG. 4 shows a pair of road surface paint applicators 10 by adjusting the weight of the road surface paint applicator 10 from the position shown in FIG. 4 shows a state in which the mounting frame 50 is moved or lowered toward the road surface 26, and the position of the road surface paint coating apparatus 10 shown in FIG. 4 corresponds to the paint discharge position of the position switching mechanism 36. In FIG. 4, the bead gun 32 is attached to the road surface paint coating apparatus 10.

  The road surface paint application device 10 is pulled out of the vehicle 12 by the operator from the storage position stored in the vehicle 12 via the position movement mechanism 36, and the worker hooks on the latching portion 46 a of the moving frame 46. Since the chain 54 is moved to the paint discharge position by adjusting the stopped chain 54, the position switching mechanism 36 allows the operator to move the road surface paint application device 10 from the road surface paint application device 10 to the road surface paint 22. 26 can be easily moved to the state where it is released to H.26.

  Further, as shown in FIGS. 5 and 6, the road surface paint coating apparatus 10 receives a paint for receiving the road surface paint 22 that has flowed down through an automatic opening / closing door 56 and a guide rod 58 provided in the heat retaining tank. A member 60, a hopper-like paint storage container 62 that receives a predetermined amount of fluid road surface paint 22 received by the paint receiving member 60, and a liquid level of the road surface paint 22 stored in the paint storage container 62. The fluid road surface paint 22 stored in the paint storage container 62 is discharged toward the road surface 26 through the level sensor 64 to be detected and the discharge port 66 having a longitudinal shape in the width direction of the line applied to the road surface 26. The paint discharge device 68 is disposed between the paint storage container 62 and the paint discharge device 68. And a flow control valve 70 consisting of rotating the valve member 82 which is fitted to it and the valve body 76 to adjust the flow rate of the road surface paint 22 to be supplied to preparative emitting device 68.

  As shown in FIG. 5, a longitudinal opening 72 extending in a direction substantially orthogonal to the traveling direction of the vehicle 12 is formed in the lower portion of the paint storage container 62, and the paint storage container 62 is surrounded so as to surround the longitudinal opening 72. A flange 74 fixed to the lower portion of the valve body 76 is fixed to the upper surface of the valve body 76 of the flow control valve 70. The valve body 76 is provided with a passage 78 penetrating downward from the longitudinal opening 72, and the passage cross-sectional area of the road surface paint 22 flowing in the passage 78 is changed in the middle of the passage 78. For this purpose, a cylindrical rotary valve element 82 having a longitudinal through hole 80 extending in the axial direction and penetrating in the diametrical direction is fitted so as to be rotatable around the axis. That is, the flow control valve 70 is configured in the same manner as a so-called rotary valve.

  Further, as shown in FIG. 5, the main body 84 of the paint discharging device 68 is fixed to the lower surface of the valve body 76. In the main body 84, a pair of cylindrical rotating bodies spaced in the horizontal direction at a predetermined interval in a direction substantially perpendicular to the traveling direction of the vehicle 12, that is, in a state parallel to the longitudinal direction of the longitudinal through hole 80 or the rotary valve element 82. 86 and 88 are provided so as to be able to rotate around their axes, and the road surface paint 22 that has passed through the flow control valve 70 can be dropped between the pair of cylindrical rotating bodies 86 and 88. A relative position with respect to the valve body 76 is set. As shown by the arrows in FIG. 5, the pair of columnar rotating bodies 86 and 88 are continuously rotated so that the outer peripheral surfaces approaching each other move downward.

  The pair of columnar rotators 86 and 88 function as an application roll for applying the road surface paint 22, and both or one of the pair of columnar rotators 86 and 88 is like a knurl. The cylindrical body in which a large number of irregularities or outer peripheral teeth are formed on the outer peripheral surface, or the cylindrical body in which a large number of fibers are planted on the outer peripheral surface in a brush shape or a radial shape, The finely divided road surface paint 22 is ejected downward, that is, toward the road surface 26. The longitudinal through-hole 80 has a longitudinal dimension substantially equal to the width dimension of the line to be drawn on the road surface 26 (for example, about 150 mm), and the pair of cylindrical rotating bodies 86 and 88 and the discharge port 66 are The length in the width direction of the line is sufficiently larger than the longitudinal through hole 80, but is set to a length dimension substantially corresponding to the width dimension of the line.

  As shown in FIG. 7, both ends of the pair of columnar rotating bodies 86 and 88 are passed through a pair of side plates 90 and 92 fixed to the end surfaces of the valve body 76 and the main body 84, and the pair of side plates The support plates 94 and 96 fixed to the respective 90 and 92 are respectively supported via bearings 98. Thereby, the pair of columnar rotating bodies 86 and 88 are rotatably supported in a state where a slight gap is formed between the outer peripheral surface and the main body 84.

  In addition, as shown in FIG. 7, a pair of gears 86 a and 88 a that mesh with each other is fixed to one end of the pair of columnar rotators 86 and 88, and the other end of the columnar rotator 86 is fixed to the other end. A pulley 106 around which a transmission belt 104 shown in FIG. 4 is wound is fixed together with a pulley 102 provided on an output shaft of the drive engine 100 shown in FIG. 4, and a pair of cylindrical rotating bodies 86 are fixed by the drive engine 100. , 88 are driven to rotate at a relatively high speed in the rotation direction indicated by the arrow in FIG. As a result, the road surface paint 22 dropped between the pair of columnar rotators 86 and 88 is finely divided using the centrifugal force of the pair of columnar rotators 86 and 88 in the main body 84. Is ejected toward the road surface 26 along the broken arrow in FIG. Further, the drive engine 100 is driven by an operation of an engine drive device (not shown) provided in the drive engine 100, so that the drive engine 100 is driven and the pulley 102 fixed to the output shaft is rotationally driven. A pair of columnar rotators 86 and 88 are rotationally driven via 104 and pulley 106.

  As shown in FIGS. 5 and 6, the road surface paint coating apparatus 10 has a base end portion 108a having a pair of side plates 90a that can be rotated about a first axis L1 parallel to a direction orthogonal to the traveling direction of the vehicle. A pair of first arm members 108 respectively supported by 92 and a tip end portion 108b of the pair of first arm members 108, and the pair of first arm members 108 rotating about the first axis L1. Accordingly, the first horizontal position (blocking position) that blocks the radiation path 67 of the road surface paint 22 from the discharge port 66 of the paint discharge device 68 toward the road surface 26 and the first opening that opens the discharge port 66, that is, the radiation path 67. The first receiving plate 110 having a substantially rectangular shape that is moved between the open position (open position) and the pair of first arm members 108 are rotated about the first axis L1 by using compressed air as driving energy. The first cut-off device 114 and a rotary actuator 112 that functions as a first receiving plate driving device for moving the plate 110 to the first blocking position and the first open position the (receiving plate driving unit) is provided. Further, the rotary actuator 112 is controlled by an electronic control device (control device) 118 provided in the road surface paint coating apparatus 10 with a first switching control valve 116 for switching the supply path of the compressed air supplied to the rotary actuator 112. By being controlled, the first receiving plate 110 is moved to the first blocking position or the first opening position via the pair of first arm members 108.

  The position of the first receiving plate 110 represented by the solid line in FIGS. 5 and 6 indicates the first open position, and the alternate long and short dash line indicates the first blocking position. In addition, the pair of side plates 90 and 92 are provided with a pair of first stopper portions (not shown) that restrain the rotation range around the first axis L1 of the pair of first arm members 108 within a predetermined range. When the first receiving plate 110 is rotated in the vehicle traveling direction via the pair of first arm members 108, the first receiving plate 110 has the first arm member 108 that contacts one of the pair of first stopper portions. When the first receiving plate 110 rotates in a direction opposite to the vehicle traveling direction via the pair of first arm members 108, the first receiving member is stopped. The plate 110 stops at the first open position when the first arm member 108 is brought into contact with the other of the pair of first stopper portions.

  As shown in FIGS. 5 and 6, the road surface paint coating apparatus 10 includes a pair of side plates 90 a having a base end portion 120 a that is rotatable about a first axis L <b> 2 parallel to a direction orthogonal to the traveling direction of the vehicle. A pair of second arm members 120 respectively supported by 92 and a distal end portion 120b of the pair of second arm members 120, and the pair of second arm members 120 rotating about the second axis L2. Thus, a substantially horizontal second shielding position (blocking position) for shielding the radiation path 67 of the road surface paint 22 from the discharge port 66 of the paint discharge device 68 toward the road surface 26 and the second opening for opening the discharge port 66, that is, the radiation path 67. The rectangular second receiving plate 122 that is moved between the open position and the pair of second arm members 120 are rotated about the second axis L2 using compressed air as driving energy to move the second receiving plate 122 above. Second shut-off device 126 and a rotary actuator 124 which serves as a second receiving plate driving device (receiving plate drive unit) for moving the two shut-off position and the second open position is provided. Further, the rotary actuator 126 is controlled via the pair of second arm members 120 by the electronic control device 118 controlling the second switching control valve 128 that switches the supply path of the compressed air supplied to the rotary actuator 126. Then, the second receiving plate 122 is moved to the second blocking position or the second opening position.

  The position of the second receiving plate 122 represented by the solid line in FIGS. 5 and 6 indicates the second open position, and the alternate long and short dash line indicates the second blocking position. Further, the pair of side plates 90 and 92 are provided with a pair of second stopper portions (not shown) that restrain the rotation range around the second axis L2 of the pair of second arm members 120 within a predetermined range. When the second receiving plate 122 rotates in the vehicle traveling direction via the pair of second arm members 120, the second receiving plate 122 has the second arm member 120 that contacts one of the pair of second stopper portions. When the second receiving plate 122 rotates in a direction opposite to the vehicle traveling direction via the pair of second arm members 120, the second receiving member is stopped. The plate 122 stops at the second blocking position when the second arm member 120 is brought into contact with the other of the pair of second stopper portions.

  As shown in FIG. 6, the road surface paint coating apparatus 10 is a first substantially rectangular copper plate that is slidably brought into contact with the receiving surface 110 a of the first receiving plate 110 located at the first open position. A first paint removing device (paint removing device) 134 having a plate member 130 and a pneumatic cylinder (actuator) 132 that projects an output shaft 132a to which the first plate member 130 is attached to the first receiving surface 110 side is provided. It has been. Further, the first paint removing device 134 is configured such that the first receiving plate 110 is controlled by the electronic control device 118 controlling the fourth switching control valve 136 that switches the supply path of the compressed air supplied to the pneumatic cylinder 132. In the case of the first open position, as shown in FIG. 8, the output shaft 132 a, that is, the first plate member 130 is protruded from the pneumatic cylinder 132 toward the first receiving plate 110 to the receiving surface 110 a of the first receiving plate 110. The received road surface paint 22 is scraped off from the first receiving plate 110.

  Further, as shown in FIG. 6, the road surface paint coating apparatus 10 is a substantially rectangular copper plate for slidingly contacting the receiving surface 122a of the second receiving plate 122 located at the second open position from the tip. A second paint removing device (paint removing device) 142 having a second plate member 138 and a pneumatic cylinder (actuator) 140 that projects an output shaft 140a to which the second plate member 138 is attached to the second receiving surface 122 side. Is provided. Further, the second paint removing device 142 is configured such that the second receiving plate 122 is controlled by the electronic control device 118 controlling the fifth switching control valve 144 that switches the supply path of the compressed air supplied to the pneumatic cylinder 140. In the case of the second open position, as shown in FIG. 9, the output shaft 140 a, that is, the second plate member 138 is protruded from the pneumatic cylinder 140 toward the second receiving plate 122 to the receiving surface 122 a of the second receiving plate 122. The received road surface paint 22 is scraped off from the second receiving plate 122.

  The second paint removing device 142 includes a paint container 146 that receives and collects the road surface paint 22 scraped off from the second receiving plate 122 by the second paint removing device 142.

  The first paint removing device 134 and the second paint removing device 142 are configured so that the road surface paint 22 adheres to the first receiving plate 110 and the second receiving plate 122 during the operation of the road surface paint applying device 10. Since the road surface paint 22 on the first receiving plate 110 and the second receiving plate 122 is scraped off and removed by the member 130 and the second plate member 138, continuous application work of the road surface paint application device 10 is possible. become.

  On the first receiving plate 110 and the second receiving plate 122, the road surface paint 22 received on the receiving surfaces 110a, 122a is heated and maintained at a temperature at which the fluidity is not lost, that is, a temperature at which the paint is dissolved or liquefied. Since the heaters (heating devices) 148 for preventing the paint 22 from adhering to the first receiving plate 110 and the second receiving plate 122 are provided, respectively, on the first receiving plate 110 and the second receiving plate 122. The attached road surface paint 22 is easily removed from the first receiving plate 110 and the second receiving plate 122 by the first plate member 130 and the second plate member 138 of the first paint removing device 134 and the second paint removing device 142. Can do.

  As shown in FIGS. 4 and 10, the road surface paint coating apparatus 10 has a longitudinal lever member 150 in which one end portion of a rotary valve element 82 of a flow control valve 70 is fixed to a base end portion 150 a, and its lever. Pneumatic pressure provided with a longitudinal rotation connecting member 152 whose one end is rotatably connected to the tip 150b of the member 150, and an output shaft (not shown) to which the other end of the rotation connecting member 152 is fixed. An opening / closing device 156 having a cylinder 154 is provided.

  When the output shaft of the pneumatic cylinder 154 moves when the third switching control valve 158 that switches the supply path of the compressed air supplied to the pneumatic cylinder 154 is controlled by the electronic control device 118, the opening / closing device 156 rotates. The lever member 150 is switched from the closed state shown by the solid line in FIG. 10 to the open state shown by the one-dot chain line in FIG. Further, when the lever member 150 is switched from the closed state to the open state, the rotary valve element 82 of the flow rate adjusting valve 70 closes the supply path of the road surface paint 22 from the paint storage container 62 to the paint discharge device 68. From the state, the supply path of the road surface paint 22 from the paint storage container 62 to the paint discharging device 68 is switched to the open state. Further, when an application start button (not shown) is operated, the electronic control device 118 controls the third switching control valve 158 to switch the lever member 150 from the closed state to the open state.

  Further, the opening / closing device 156 includes a stopper member (not shown) that contacts the output shaft of the pneumatic cylinder 154 in the open state of the lever member 150 and restrains the movement of the output shaft, the stopper member, and the output shaft. And a moving mechanism (not shown) that moves the contact position of the pneumatic cylinder 154 by an operator's operation, and the rotation connecting member is moved by moving the contact position between the stopper member and the output shaft of the pneumatic cylinder 154. The lever member 150 can be moved to the position between the state of the dashed-dotted line shown in FIG. Therefore, the amount of the road surface paint 22 discharged from the paint discharge device 68 can be changed by the operator's judgment, and the thickness of the road surface paint 22 applied to the road surface 26 can be adjusted by the operator's judgment. it can.

  As shown in detail in FIG. 11, the travel speed detection device 34 is rotatably supported by an upper and lower frame 160 and is rotated while being grounded on the road surface 26 when the upper and lower frame 160 is positioned at the lowered position. A rotating wheel 162 and a rotary encoder 170 provided in a housing 164 fixed to the upper and lower frames 160 and connected to an axle 168 of the rotating wheel 162 via a coupling 166 are provided. The cycle or frequency of the pulse signal output from the rotary encoder 170 represents the traveling speed V of the vehicle 12, and the traveling distance M is calculated based on the traveling speed V.

  FIG. 12 is a diagram for explaining a main part of an electronic control device (control device) 118 provided in the road surface paint coating apparatus 10. In FIG. 12, the liquid level detection signal output from the level sensor 64, the signal indicating the actual travel distance M of the vehicle 12 output from the travel distance detection device 34, and the application preparation button (not shown) being operated. A signal indicating that a coating start button (not shown) has been operated is supplied to the electronic control unit 118, respectively. The electronic control device 118 is a so-called microcomputer provided with a CPU, ROM, RAM, input / output interface, etc., and the CPU processes input signals in accordance with a program stored in the ROM in advance using the temporary storage function of the RAM. , Rotary actuator 112, rotary actuator 124, pneumatic cylinder 132, pneumatic cylinder 140, first switching control valve 116 for operating pneumatic cylinder 154, second switching control valve 128, third switching control valve 158, The 4 switching control valve 136, the 5th switching control valve 144, and the automatic opening / closing door 56 are controlled.

  In the road surface paint coating apparatus 10 of the present embodiment configured as described above, the operator stores the road surface paint coating apparatus 10 in the vehicle 12 via the position switching mechanism 36 prior to the start of the coating work. Further, the road surface paint 22 is moved from the storage position to the paint discharge position where it is discharged from the paint discharge device 68 to the road surface 26, and thereafter, an engine drive device (not shown) provided in the drive engine 100 is operated. Thus, the drive engine 100 is driven to rotationally drive the pair of columnar rotators 86 and 88.

  Then, when a coating preparation button (not shown) is operated, the electronic control unit 118 controls the automatic opening / closing door 56 so that the road surface paint 22 stored in the heat retaining tank is passed through the guide rod 58. Then, the supply of the road surface paint 22 is automatically controlled so as to obtain a predetermined liquid level in the paint storage container 62. That is, the automatic opening / closing door 56 of the heat retaining tank is controlled to be opened and closed so that the liquid level of the road surface paint 22 preset by the level sensor 64 is held at a predetermined liquid level. Thereby, at least during the coating operation, the liquid level of the road surface paint 22 in the paint reservoir 62 is always kept constant. Therefore, the electronic control device 118 also functions as a liquid level control device. Further, the electronic control device 118 controls the first switching control valve 116 and the second switching control valve 128 to drive the rotary actuator 112 and the rotary actuator 124 to bring the first receiving plate 110 into the first cutoff position. While rotating, the 2nd receiving plate 122 is rotated to the said 2nd open position. Further, the first receiving plate 110 and the second receiving plate 122 are heated and held at a temperature equal to or higher than the melting temperature or softening temperature of the road surface paint 22 by the heater 148.

  When a coating start button (not shown) is operated, the electronic control unit 118 controls the third switching control valve 158 to move the lever member 150 from the closed state to the open state, thereby controlling the flow rate adjusting valve 70. At the same time, the first switching control valve 116 is controlled to rotate the first receiving plate 110 that has been in the first shut-off position to the first open position by the rotary actuator 112. Thereby, the road surface paint 22 dropped between the pair of columnar rotating bodies 86 and 88 is ejected through the discharge port 66 of the main body 84 in a finely divided state, and immediately after the start of the ejection, The first receiving plate 110 is received, and then the first receiving plate 110 is applied to the road surface 26 by moving to the first opening position.

  When the application start button is operated, the lever member 150 fixed to one end of the rotary valve element 82 of the flow rate adjusting valve 70 is changed from the closed state to the open state, and the flow rate of the road surface paint 22 supplied to the paint discharging device 68. Since the amount of the road surface paint 22 discharged from the paint discharging device 68 is small and the road surface paint 22 is applied to the road surface 26 until the time becomes constant, the thickness of the road surface paint 22 is reduced. The first receiving plate 110 is received by the rotary actuator 112 so as to receive the road surface paint 22 discharged from the paint discharge device 68 until the flow rate of the road surface paint 22 supplied to the paint discharge device 68 becomes constant. It rotates from the first blocking position to the first opening position.

  The rotational speed of the rotary actuator 112 that rotates the first receiving plate 110 about the first axis L1 is plural in consideration of the time during which the lever member 150 is switched from the closed state to the open state by the pneumatic cylinder 154. The calculated rotation speed is applied to the rotary actuator 112, and the sharpness of the starting end of the line drawn on the road surface 26 is verified from the road surface paint device 10 to select the best rotation speed. is there. As a result, when the road surface paint 22 is supplied to the paint discharge device 68, the road surface paint 22 is first discharged in the initial period in which the flow is discharged by the electronic control unit 118 immediately after the start of the supply. Since the first receiving plate 110 is received by the receiving plate 110 and then moved to the first opening position, the starting end of the line drawn on the road surface 26 becomes clear.

  When the first receiving plate 110 moves to the first open position, the electronic control unit 118 controls the fourth switching control valve 136 to move the first plate member 130 attached to the output shaft 132a of the pneumatic cylinder 132 to the first. By projecting toward the receiving plate 110 side, the road surface paint 22 received by the first receiving surface 110 is scraped off from the first receiving plate 110, and the scraped road surface paint 22 is removed from the paint discharging device 68. 26 is dropped onto a line applied in a line.

  When the road surface paint 22 is discharged from the paint discharge device 68 to the road surface 26, the operator moves the stopper portion of the moving mechanism provided in the opening device 156, thereby painting through the flow rate adjustment valve 70. The discharge amount of the road surface paint 22 discharged from the discharge device 68 can be adjusted, and when the road surface paint 22 applied to the road surface 26 during the application of the road surface paint 22 is thin or thick, sometimes The thickness of the road surface paint 22 is adjusted according to the judgment of the operator.

  The application end button (not shown) is operated, or the set value that sets the distance of the line to be applied to the road surface 26 is the same as the vehicle travel distance input from the travel distance detector 34, and the end of application is determined. Then, the electronic control unit 118 controls the third switching control valve 158 to close the flow rate control valve 70 and also controls the first switching control valve 116 to control the first receiving plate that has been in the first open position until then. At the same time as 110 is rotated to the first blocking position, the second switching control valve 128 is controlled to rotate the second receiving plate 122 that has been in the second opening position until then to the second blocking position. Thereby, even after the flow rate control valve 70 is closed, the road surface paint 22 attached to the outlet of the flow rate control valve 70 and the pair of columnar rotating bodies 86 and 88 is discharged from the paint discharge device 68 toward the road surface 26. Is blocked by the first receiving plate 110 and the second receiving plate 122, so that the end portions of the road surface lines such as road signs, lane markings, characters, and the like drawn by the road surface paint 22 applied on the road surface 26 are clean, that is, Sharply formed.

  Thereafter, when the second receiving plate 122 moves to the second open position so that the road surface paint 22 is applied to the road surface 26 from the road surface paint application device 10, the electronic control unit 118 controls the fifth switching control valve 114. By projecting the second plate member 138 attached to the output shaft 140a of the pneumatic cylinder 140 toward the second receiving plate 122, the road surface paint 22 received by the second receiving surface 122a is removed from the second receiving plate 122. While being scraped off, the scraped road surface paint 22 is dropped into the paint container 146.

  Here, as shown in FIG. 13, which is an enlarged view of the main body of the paint discharging device in FIG. 5, a passage 78 provided with a flow rate adjusting valve 70 by the valve body 76 and the main body 84 of the paint discharging device 68 fixed to the lower surface thereof. A pair of partial inner peripheries that are opposed to each other with a slight gap between the discharge port 66 that opens toward the road surface 26 and the outer peripheral surface of the pair of columnar rotators 86 and 88 and that continues to the discharge port 66. A space having the surfaces 87 and 89 and accommodating the pair of columnar rotating bodies 86 and 88 is formed by the valve body 76 and the main body 84. Then, on the outer peripheral surfaces of the pair of columnar rotating bodies 86 and 88 of the paint discharging device 68, release layers 180 and 182 having a low-adhesive surface for easily peeling off the attached fluid road surface paint 22 are formed. Has been. The release layers 180 and 182 are fixed to have a predetermined thickness of, for example, about 0.1 mm to 2 mm. For example, a fluororesin excellent in low adhesion, preferably a polytetrafluoroethylene resin is used. It is formed by coating.

  Further, the fluid road surface paint 22 that adheres to the partial inner peripheral surfaces 87 and 89 of the main body 84 corresponding to the outer peripheral surfaces of the pair of columnar rotators 86 and 88 by the same material as the release layers 180 and 182. Peeling layers 184 and 186 having a low-adhesive surface that easily peels off are formed.

  FIG. 14 shows an enlarged vertical section of the second receiving plate 122, and FIG. 15 shows an enlarged horizontal section of the second receiving plate 122. Also on the receiving surface 122a of the second receiving plate 122, a release layer 188 having a low-adhesive surface that easily peels off the attached fluid road surface paint 22 is formed of the same material as the release layers 180 and 182. ing. 14 and 15, the fluid road surface paint 22 that adheres to the receiving surface 110 a of the first receiving plate 110 is easily peeled off using the same material as that of the peeling layers 180 and 182. A release layer 188 having a low adhesive surface is formed.

  As described above, according to the road surface paint application device 10 of the present embodiment, the release layer 180 that promotes the peeling of the road surface paint 22 on the outer peripheral surfaces of the pair of columnar rotating bodies 86 and 88 of the paint discharge device 68, 182 is provided, and the fluid road surface paint 22 can be easily peeled off from the outer peripheral surfaces of the pair of columnar rotating bodies 86 and 88, and thus is discharged from the discharge port 66 of the paint discharge device 68. Since the convergence of the road surface paint 22 is enhanced and the radiation angle θ is reduced, the second receiving plate 122 that blocks the flow of the road surface paint 22 discharged from the paint discharge device 68 toward the road surface 26 at the end of line application. The rotation time or the rotation angle θ can be reduced, and the end portion of the line formed by applying the road surface paint 22 on the road surface becomes clear.

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, the fluidity is applied to the partial inner peripheral surfaces 87 and 89 facing the outer peripheral surfaces of the pair of columnar rotating bodies 86 and 88 in the main body 84 of the paint discharging device 68. Peeling layers 184 and 186 that promote the peeling of the road surface paint 22 are formed, and the fluid road surface paint 22 is opposed to the outer peripheral surfaces of the pair of columnar rotators 86 and 88, partially inner peripheral surfaces 87, Since the peeling from 89 becomes easy, the convergence of the road surface paint 22 discharged from the discharge port 66 of the paint discharge device 68 is enhanced and the radiation angle θ is reduced. The rotation time or the rotation angle θ of the second receiving plate 122 that blocks the flow of the road surface paint 22 released toward the end of the line application can be reduced, and the road surface paint 22 can be reduced. Is applied to the road surface, the end portion of the line formed becomes clear.

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, the release layer 184 is provided on the partial inner peripheral surfaces 87 and 89 of the main body 84 of the paint discharging device 68 facing the outer peripheral surfaces of the pair of columnar rotating bodies 86 and 88. 186 is formed, and the amount of the road surface paint 22 adhering to the partial inner peripheral surfaces 87 and 89 of the main body 84 of the paint discharge device 68 is small, so that the road surface from the discharge port 66 of the paint discharge device 68 is used. Since the paint 22 is less dropped and the burden on the second receiving plate 122 can be reduced, the end portion of the line becomes clearer.

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, the outer peripheral surface of the pair of cylindrical rotating bodies 86 and 88 and the outer peripheral surface of the pair of cylindrical rotating bodies 86 and 88 in the main body 84 of the paint discharging device 68 are provided. There is an advantage that the road surface paint 22 is less sticking to the opposing inner peripheral surfaces 87 and 89, construction sustainability is obtained, work efficiency is improved, and the service life is extended and maintenance costs are reduced. .

  Further, according to the road surface paint coating apparatus 10 of the present embodiment, when the road surface paint 22 is supplied to the paint discharging apparatus 68, the road surface paint 22 is discharged to the first receiving plate 110 immediately after the start of the supply. After receiving the paint 22, the first receiving plate 110 is moved from the blocking position to the open position, and when the supply of the road surface paint 22 to the paint discharging device 68 is stopped, the second receiving plate 122 is moved. A control device 118 that receives the road surface paint 22 that is released after the supply is stopped and is located at the blocking position, and the receiving surfaces 110a and 122a of the first receiving plate 110 and the second receiving plate 122 are for road surface use. Since the peeling layer 188 that promotes peeling of the paint 22 is formed, the road surface paint 22 received by the first receiving plate 110 and the second receiving plate 122 is used as the first plate member. Can be dropped easily scraped by 30 and the second plate member 138, also at the time of continuous construction of the line end portion, there is an advantage that the same line end portion.

  As mentioned above, although the Example of this invention was described in detail based on drawing, this is an embodiment to the last, and this invention is also in the other aspect which added various change and improvement based on the knowledge of those skilled in the art. Applied.

  For example, in the road surface paint coating apparatus 10 of the above-described embodiment, the release layers 180, 182, 154, 156, and 158 are formed by coating with a fluororesin, but the fluorofibers are fixed in layers, Or you may form by the sheet | seat which consists of fluorine fibers adhering.

  Further, in the road surface paint coating apparatus 10 of the above-described embodiment, the release layers 180 and 182 are provided on the outer peripheral surfaces of the pair of cylindrical rotating bodies 86 and 88, and the release layer 184 is provided on the partial inner peripheral surface of the main body 84. 186 is provided, but it is not always necessary to provide both of them. Even if a release layer is provided on one of the outer peripheral surface of the pair of columnar rotating bodies 86 and 88 and the partial inner peripheral surface of the main body 84, a temporary effect is obtained. Is obtained.

Further, the release layers 180 and 182 are formed on the entire outer peripheral surface of the pair of columnar rotating bodies 86 and 88.
The release layers 184 and 186 are provided on the entire inner peripheral surface of the main body 84. However, the release layers 184 and 186 are not necessarily provided on the entire surface, and are not necessarily provided on the entire surface. May be.

  In the above-described embodiment, the electronic control device 118 inputs a set value that sets the distance of the line to be applied to the road surface 26 from the travel distance detection device 34 by operating an application end button (not shown). When the vehicle travel distance is the same and it is determined that the application is finished, the first switching control valve 116 and the second switching control valve 128 are controlled to rotate the first receiving plate 110 and the second receiving plate 122 to the blocking position. Although it is moved, it is not always necessary to rotate the first receiving plate 110 to the blocking position.

  In addition, the first shut-off device 114 and the second shut-off device 126 of the above-described embodiment are configured so that the first receiving plate 110 and the second receiving plate 122 are rotated between a substantially horizontal blocking position and a substantially vertical opening position. However, the first receiving plate 110 and the second receiving plate 122 may be configured to be translated between a substantially horizontal blocking position and a substantially horizontal opening position.

  Although not illustrated one by one, the present invention can be implemented in variously modified and improved modes based on the knowledge of those skilled in the art.

10: Road surface paint coating device 22: Road surface paint 26: Road surface 66: Discharge port 68: Paint discharge device 84: Main body 86, 88: Cylindrical rotating body 87, 89: Partial inner peripheral surface 110: First receiving plate 110a : Reception surface 118: Electronic control device (control device)
122: second receiving plate 122a: receiving surface 130: first plate member 138: second plate member 180, 182, 184, 186, 188: release layer

Claims (2)

A pair of parallel cylindrical rotating bodies that are continuously rotated so that the outer peripheral surfaces approaching each other move downward, a supply port to which fluid road surface paint is supplied, and a discharge port that discharges the road surface paint And a main body that accommodates the pair of cylindrical rotating bodies, and finely pulverizing the fluid road surface paint using centrifugal force and discharging the paint from the discharge port toward the road surface A pair of first receiving plate and second receiving plate that respectively block the discharge port of the device, the paint discharging device, and the pair of first receiving plate and second receiving plate between the discharge port and the road surface A pair of receiving plate driving devices that move between a first blocking position and a second blocking position that block the path and a first opening position and a second opening position that open the radiation path travel on the road surface. In preparation for the dolly, as the dolly runs A road surface paint coating apparatus for applying a road surface paint in a line shape on the road surface,
The road surface paint is applied to at least one of an outer peripheral surface of the pair of columnar rotating bodies of the paint discharging device and a partial inner peripheral surface of the main body of the paint discharging device facing the outer peripheral surfaces of the pair of cylindrical rotating bodies. A release layer that promotes peeling is formed, and a release layer that promotes peeling of the road surface paint is also formed on the receiving surfaces of the first receiving plate and the second receiving plate,
A first plate member for slidingly contacting the first receiving plate located at the first open position from the tip, and a road surface paint received on the first receiving plate by driving the first plate member A first paint removing device having a first actuator that scrapes off the road surface paint applied in a line on the road surface;
A road surface paint coating apparatus. A second plate member for slidingly contacting the second receiving plate located at the second open position from the tip, and a road surface paint received on the second receiving plate by driving the second plate member A second paint removal device having a second actuator that scrapes off a pre-installed paint container;
The road surface paint coating apparatus according to claim 1.

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